Research Article: 4-(4-Nitro­benz­yl)pyridinium 5-nitro­salicylate

Date Published: May 01, 2010

Publisher: International Union of Crystallography

Author(s): Graham Smith, Urs D. Wermuth.

http://doi.org/10.1107/S1600536810014698

Abstract

In the title salt, C12H11N2O2+·C7H4NO5−, the cations and anions inter­act through asymmetric cyclic pyridinium–carboxyl­ate N—H⋯O,O′ hydrogen-bonding associations [graph set R12(4)], giving discrete heterodimers having weak cation–anion π–π aromatic ring inter­actions [minimum ring centroid separation = 3.7116 (9) Å].

Partial Text

For structural data on nitro-substituted 4-benzyl­pyridines and related compounds, see Seff & Trueblood (1968 ▶); Ottersen & Seff (1974 ▶); Scherl et al. (1996 ▶); Smith et al. (1997 ▶); Naumov et al. (2002 ▶). For structures of Lewis base salts of 5-nitro­salicylic acid, see: Smith et al. (1996 ▶, 2005 ▶, 2006 ▶). For graph-set motifs, see: Etter et al. (1990 ▶).

Source:

http://doi.org/10.1107/S1600536810014698